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428-12T Front Engine Sprocket (17mm) for 50cc–160cc Dirt Pit Bike & ATV
428-12T Front Engine Sprocket (17mm) for 50cc–160cc Dirt Pit Bike & ATV
5.0 / 5.0
(2) 2 total reviews
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Product Overview
Maximize your vehicle's climbing power and acceleration with the 428-12T Heavy-Duty Front Sprocket. Specifically designed for the thicker 428-series chain, this 12-tooth sprocket is the perfect choice for riders who prioritize torque over top speed. Whether you are navigating technical trails or working on the farm, this sprocket provides the mechanical advantage needed to pull through tough terrain. Crafted from hot-treated steel, it offers the rugged durability required for high-torque 140cc and 160cc engines.
Product Compatibility
| Component Type | Specification |
| Engine Displacement | 50cc, 70cc, 110cc, 125cc, 140cc, 160cc |
| Vehicle Types | Dirt Pit Bikes, ATVs, Quads, 4-Wheelers |
| Chain Pitch | 428 (Heavy Duty) |
| Shaft Fitment | 17mm Countershaft |
| Common Brands | TaoTao, Sunl, Apollo, SSR, Lifan, YX |
Specifications
| Feature | Details |
| Model | 428 Style / 12 Teeth |
| Inner Diameter | 17mm (0.67") |
| Mounting Hole Distance | 30mm (1.18") center-to-center |
| Chain Size | 428 |
| Material | Hot-Treated High-Strength Steel |
| Package Includes | 1 x Sprocket, 1 x Retainer Holder, 2 x Bolts |
Key Features
- High-Torque Performance: The 12-tooth configuration provides a lower gear ratio, significantly increasing "grunt" for better low-end acceleration and easier hill climbing.
- Heavy-Duty 428 Compatibility: Precision-engineered to fit 428-pitch chains, which are thicker and stronger than standard 420 chains, making it ideal for larger 140cc–160cc engines.
- Steel with Hot-Treatment: The steel is thermally hardened to provide extreme surface density, ensuring the teeth resist the "hooking" or rounding often caused by high-stress off-road riding.
- Complete Installation Kit: Each sprocket includes a free locking plate (holder) and mounting bolts, ensuring you have everything needed for a quick and secure installation without searching for spare hardware.
- Universal 17mm Fitment: Designed to fit the most common output shafts on Chinese-made horizontal and vertical engines, with standard 30mm bolt spacing for wide compatibility.
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Great for kids lil 90trx
Fits perfect on 125cc chinese quad